Performance Prediction Diagnostic Tester (TVAT)
for Turbine Valve Actuators

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• Power supply: 380 ~ 480VAC
• Tested pressure: 5 ~ 250 bar (max.)
• Dimensions (mm): 1200 x 1100 x 1750 (H)

※ Specifications are subject to change without notice.

  • The "Performance Prediction Diagnostic Tester (TVAT) for Turbine Valve Hydraulic Actuators" has been certified by the Ministry of Industry and Commerce of the Ministry of Commerce, Industry and Energy (NEP).
    It is a new innovative product of the world's first developed power plant maintenance and diagnostic technology which has successfully received the power plant field test.
  • "Turbine Valve Hydraulic Actuators" of thermal power plants and nuclear power plants are important core devices that are installed to control the amount of steam supplied to the turbine, which requires high durability and reliability. It has significantly improved the serious problem of current generation maintenance technology, which couldn’t diagnose its performance without separating the hydraulic actuator from the system.
  • This product has been favorably received by Wolsung nuclear and thermal power plant in Korea with successful the field test.
  • "Performance Prediction Diagnostic Tester (TVAT) for Turbine Valve Hydraulic Actuators ", which is moveable for easy access to the plant site. Without disconnecting the turbine valve hydraulic actuator from the system, it is possible to diagnose performance and this prevents the power plant from being turned off, save enormous maintenance cost, shorten the maintenance period, and determine the replacement period. Stable supply and demand can be expected due to increased reliability of maintenance and improved power plant operation efficiency.

Present Problems and Countermeasures for Performanc Prediction
Diagnostic Tester for Turbine Valve Actuators

  • No checkup and predictive diagnosis on performance without separating the body are possible.
  • It is difficult to secure the reliability of the maintenance due to the inability to get a full inspection within the
  • maintenance period.
  • After the maintenance, it is not possible to test the performance of the power plant itself.
  • Delays in maintenance and enormous maintenance and diagnostics costs.
  • Actual preventive maintenance is not possible through pre-defect check.
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